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(No Model.) 2 Sheets-Sheet 1..

H. N. KEITH.

WHEEL PLOW.

Patented Nov. 13, 1888.

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v v M 2 Sheets-Sheet 2. H. N. KEITH.

WHEEL PLOW.

(No Model.)

No. 392,613. Patented Nov. 13, 1888.

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UNITED STATES PATENT OFFICE.

HENRY N. KEITH, OF SHELDON, MISSQURI.

WHEEL-PLOW.

SPECIFICATION forming part of Letters Patent No. 392,613, dated November13, 1888.

Application filed February 28, 1888. Serial No. 265,565. (No model.)

To all whom. it may concern.-

' Be it known that I, HENRY N. KEITH, a citizen of the United States,residing at She1- don, in the county of Vernon, State of Missouri, haveinvented certain new and useful Improvements in Wheeled Plows, of whichthe following is a specification, reference be ing had therein to theaccompanying drawings.

This invention-has relation to wheeled plows, and the objects andadvantages thereof will hereinafter appear, and the novel features beparticularly pointed out in the claims.

Referring to the drawings, Figure 1 represents a perspective of a plowconstructed in accordance with my invention; Fig. 2, an enlarged rearperspective of a portion of a plow-frame, parts being broken away. Fig.3 is a detail in perspective of the pivotal plowsharebrace, and Fig. 4is a detail in perspective of one of the bearings for the furrow-wheel.

Like letters of reference indicate like parts in all the figures of thedrawings.

A represents the plow -beam, which composes one side of the frame, andbolted thereto, as at A is a laterally-bent rectangular side frame,A',which, in connection with the beam, forms an open frame in which theplow-controlling mechanisms are mounted, said beam and frame to becomposed of bar or strap iron. To the forward end of the beam A issecured the usual clevis, A, andat the side of said beam and near itsrear end is bolted a strap or bar, A which by suitable space-blocksforms a recess, A, through which passes vertically the plow-standard B,said standard being pivotallymounted upon a transverse rockshaft, 0,which is journaled in opposite lugs, G, projecting upwardly from eachside of the frame A A. Mounted rigidly upon the rockshaft 0 at one sidethereof, and projecting vertically therefrom, is a rock-arm, 0 having alongitudinal sl0t,,C said rock-arm being ar ranged inclose proximity tothe inner face of the plow-standard and a pin, B, in the latter takinginto the slot G of the former, by which said plow may be swung to thefront or rear when the rock-shaft C is oscillated or partly rotated bymeans hereinafter described. At the opposite end of the rock-shaft Oismounted a rock shaft-operating lever, O, which is provided with alocking-pawl, 0 adapted to take into a segmental rack, O, whichstraddles the rock-shaft G and is secured to the frame A.

At the forward part of the frame A A and passing transverselytherethrough is a journaled shaft, D, preferably bent, which carriestheland-wheeloftheplow. Rigidlyconnected and extending from the shaft Dis a springlever, D, to the upper end of which is pivoted a notchedhand-bar, D which projects to the rear and is adapted to be held in adesired position by means of the notches thereof taking into pins 0,projecting from the lever C. At the opposite side of the shaft D, or itmay be upon any convenient part thereof, is mounted an adjustableembracing-sleeve, Di, provided with a set-screw and outwardly-projectingperforated lugs or cars, in which is pivoted the colter-standard D,carrying at its lower end the colter D and embraced by the endbifurcations, D, of a lever, D which is likewise perforated and adjustably pivoted to the standard D by means of a bolt passingtherethrough. The rear end of this lever D is pivotally connected with arock-arm, D depending from the rock-shaft O.

In rear of the shaft D of the land-wheel and journaled transversely inthe frame A A' is the furrow-wheel shaft E, which may or may not berigid,as desired. In order to give this shaft a sufficient length tobring the furrow wheel into the furrow preceding that being formed, Iprovide an extended bearing, E. This bearing E is bolted to the beam A,is a cast, flanged, and longitudinally-bored plate forming the upperhalf of the bearing, and bolted to the same, as at E", is a lower plate,E forming the lower half of said bearings. If desired, as upplementalframe may be bolted to the outer side of the beam A to form thisextended bearing.

Bolted to the rear end of the beam A is a bearing-block, F, in which isvertically swiveled a castenframe, F, carrying a caster, F and providedwith a scraper, F, projecting from the frame, said caster being free tomove in any desired direction determined by the plow.

From the frame A A, or, it may be, as shown in Fig. 1, from the inclinedbrace B, there extends a chain, G, to the opposite end of which isconnected a spring-shoe, G, which is adapted IOU to be inserted underthe caster F when moving from one field to another, and serves as arunner for said caster, and also as a brake for the plow, and it alsoserves to aid in elevat- 5 ing the plow-point from contact with theground. This spring-shoe G is simply a plate of metal bent upon itself,the lower portion serving as a runner and the upper portion, G

being flanged and adapted to embrace the rim of lo the wheel and alsoperforated,as at G through which a chain may be passed to chain the samein position upon the wheel, or the flanges may be relied upon, ifdesired.

B represents the plow standard; 13", the

15 plow-point; B, the mold'board, and 13 the blade. Transverselyinterposed between the mold-board B" and the standard B is thecrossbrace 13'', (see Fig. 3,) which is provided with perforated ears B,between which are pivoted the lower ends of the diagonal brace B theupper end of said brace being bolted to the bearing F, as at B or it maybe to the rear end of the plow-beam A. A supplemental brace, B extendsfrom the brace Bhwhich is 2 5 pivoted to the upper portion of thestandard B and serves as an additional brace to said standard. By meansof these braces all inordinate strain is removed from the plow-stand ardproper.

The operation of my invention is as follows: To increase the depth of afurrow, the oper ator, who is seated upon the usual drivers seat, H,grasps the lever G and disengages the ratchet thereof with the segmentalrack 0 and 5 throws said lever to the front the required distance. Thisoperation causes the rock-shaft C to turn, and through the medium of aslotted rock-arm, G", and the pin B the plow-standard B is caused toswing to the front, so as to 0 lower the point ofthe plow. At thesametime the notched bar Dflwhich has-been previously adjusted for thepurpose, is caused to move to the front the same relative distance, andthis movement causes the spring-lever D to move 5 to the front and turnthe axle D, carrying the land-wheel to the rear. The spring-lever D isof sufficient rigidity to cause this operation of the axle D, and yet isof sufficient flexibility to permit the axle to yield and the Wheel topass over such obstacles as stones, roots of trees, 850., thuspreventing breakage of any of the parts. Simultaneous with the movementof the parts described the rock-shaft D is swung to the rear and causesthe colterstandard D to swing upon its pivot, so as to throw the colterD to the front and into the ground, thus permitting the plow point toenter deeper and increase the depth of the furrow. This pivotal movementof the plow-point is permissible byreason of the pivotal connec tions ofthe brace B with the cross-bar B and the end of the plow-beam. By thisarrangement of the parts it will be seen that the operator has a clearand unobstructed view of the plow and that the controlling devices arewithin easy grasp of his hand, and that the colter, the plow, and theland-wheel are all regulated by one and the same movement, and that eachis so arranged that its adjustment may be made in properrelation to theother.

H represents the seat, which is of usual construction and mounted uponthe spring-support H in rear of the plow, so that the same may bereadily seen and its operation noted and regulated.

Having described my invention and its op eration, what I claim is- 1. Ina plow of the class described, and in combination with the frame-Workthereof, a transverse rock-shaft mounted thereon having a rigidhand-lever at one end, and aplowstandard having an inwardly-projectingpin and a rock-arm mounted on said rock-shaft and slotted to receivesaid pin, substantially as specified.

2. In a plow of the class described, the combination, with theframe-work thereof having a transverse land-whcel-carrying axle, and atransverse rock-shaft mounted in rear of the same, provided with ahand-lever, of a springlever mounted rigidly upon said axle and anotched bar pivoted to said spring-lever and adapted to take over pinsprojecting from said hand-lever, substantially as specified.

3. In a plow of the class described, a plow- ,frame provided with aland-wheel-carrying axle having a rigid spring-lever and alooselyconnected colter standard, in combination with a rock-shaftmounted in the frame and carrying a plow-standard and means for swingingthe same, an operating-lever, a rock-arm, and mechanism connecting saidcolter-standard and spring-lever with said roclrshaft and arm,substantially as specified.

4. In a plow of theclass described, a framework provided with alaud-wheel-carrying axle having a spring-lever and a loosely-connectedcolter-standard, and having a rockshaft carrying a plow-standard adaptedto swing the same, and provided with a hand- -lever for simultaneouslymoving said axle colter-standard and plow-standard, substantially asspecified.

5. In a plow of the class described, the com- I bination, with the framethereof carryinga landwheel axle, of a rock-shaft carrying a handlever,a spring-lever, D, mounted on said axle, and a notched bar connectingsaid spring-lever and hand -lever, substantially as specified.

6. In a plow, the combination, with the frame thereof having aland-wheel-carrying axle, a pivoted colter-standard, and a rockshaft, ofa plow-standard and operating-lever mounted on the rock-shaft, andmechanism connected to said lever and shaft for simultaneously operatingthe plow-point, landwheel, and colter, for the purpose specified.

7. In a plow of the class described, the combination, with its frame andthe furrow-wheel axle, of the laterally-extending casting E, bolted tothe frame, and the lower casting bolted to the upper casting, as at E,substantially as specified.

8. The frame A A, carrying the axles D and.

ICC

. E and rock-shaft O, in combination with the In testimony whereof Iaffix my signaturein spring-lever D and colter D, mounted on thepresence of two witnesses. axle D, and the plow-standard 13, mounted onthe rock-shaft O, the segmental rack O, the HENRY N. KEITH. 5 lever 0,having the pawl 0 the rock-arm D the notched lever D and the bifurcatedlever Witnesses: D, all combined and arranged substantially as S. L.CLAYTON, specified. G. W. MoOLANoHoN.

